| 摘要 |
<p>A regulation system controls the print head (21) pressures of a plurality of discrete ink jet printers of the continuous type to the same nominal pressure, while the printers use a common drive source to their own ink pumps. The regulation system includes bypass pressure detection passages (51, 55a, 58) extending from a tap in each printer's circulation system to a detection reservoir (44). Each bypass passage includes a bladder/valve portion (46, 47, 48) whose exterior is in fluid communication with a detection fluid enclosed within the common reservoir. A transducer (100) detects the pressure of the common reservoir and signals control of the common pump drive (102) so as to regulate all print head pressures to the same nominal operating pressure.</p> |
